ASTM A1008/A1008M-21a
(Specification)Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Required Hardness, Solution Hardened, and Bake Hardenable
Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Required Hardness, Solution Hardened, and Bake Hardenable
ABSTRACT
This specification covers cold-rolled, carbon steel sheets, in coils and cut lengths, in the following designations: commercial steels (CS Types A, B, and C); drawing steel (DS Types A and B); deep drawing steel (DDS); extra deep drawing steel (EDDS); structural steel (SS Grades 25[170], 30[205], 33[230] Types 1 and 2, 40[275] Types 1 and 2, 50[340], 60[410], 70[480], and 80[550]); high-strength low-alloy steel (HSLAS Classes 1 and 2 of Grades 45[310], 50[340]. 55[380], 60[410], 65[450], and 70[480]), high-strength low-alloy steel with improved formability (HSLAS-F Grades 50[340], 60[410], 70[480], and 80[550]); solution hardened steel (SHS); and bake hardenable steel (BHS). Conformance of the steel sheets to chemical composition requirements shall be tested by heat analysis. Specimens shall also undergo tension and bending tests and shall conform to specified values of tensile and yield strength, elongation, and bake hardening index. Unless otherwise indicated, sheet surfaces shall have a matte finish and shall be oiled.
SCOPE
1.1 This specification covers cold-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved formability, required hardness, full hard, solution hardened, and bake hardenable steel sheet, in coils and cut lengths.
1.2 Cold rolled steel sheet is available in the designations as listed in 4.1.
1.3 This specification does not apply to steel strip as described in Specification A109/A109M.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A1008/A1008M −21a
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
Formability, Required Hardness, Solution Hardened, and
1
Bake Hardenable
This standard is issued under the fixed designation A1008/A1008M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.1 This specification covers cold-rolled, carbon, structural,
A568/A568M Specification for Steel, Sheet, Carbon,
high-strength low-alloy, high-strength low-alloy with im-
Structural,andHigh-Strength,Low-Alloy,Hot-Rolledand
proved formability, required hardness, full hard, solution
Cold-Rolled, General Requirements for
hardened, and bake hardenable steel sheet, in coils and cut
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
lengths.
Alloys, and Ferroalloys
1.2 Cold rolled steel sheet is available in the designations as
A1092 Specification for Steel Sheet, as Cold-Reduced, for
listed in 4.1.
Conversion toAnnealed Cold-Rolled Steel Sheet, and Hot
Dip Metallic-Coated Steel Sheet
1.3 This specification does not apply to steel strip as
described in Specification A109/A109M. E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
1.4 The values stated in either SI units or inch-pound units
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
are to be regarded separately as standard. The values stated in
E646 Test Method for Tensile Strain-Hardening Exponents
each system may not be exact equivalents; therefore, each
(n -Values) of Metallic Sheet Materials
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3. Terminology
with the standard.
3.1 Definitions:
1.5 This international standard was developed in accor-
3.1.1 For definitions of other terms used in this
dance with internationally recognized principles on standard-
specification, refer to Terminology A941.
ization established in the Decision on Principles for the
3.2 Definitions of Terms Specific to This Standard:
Development of International Standards, Guides and Recom-
3.2.1 aging, n—loss of ductility with an increase in
mendations issued by the World Trade Organization Technical
hardness, yield strength, and tensile strength that occurs when
Barriers to Trade (TBT) Committee.
steel that has been slightly cold worked (such as by temper
2. Referenced Documents rolling) is stored for some time.
2
3.2.1.1 Discussion—Aging increases the tendency of a steel
2.1 ASTM Standards:
to exhibit stretcher strains and fluting.
A109/A109M Specification for Steel, Strip, Carbon (0.25
Maximum Percent), Cold-Rolled 3.2.2 Bake Hardenable Steel (BHS), n—steel in which
significant aging is realized when moderate heat treatment,
such as that used for paint baking, follows straining or cold
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
working.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
3.2.3 Full Hard Steel (FHS), n—steel that is cold reduced
A01.19 on Steel Sheet and Strip.
Current edition approved Nov. 1, 2021. Published November 2021. Originally
and exhibits a microstructure consisting of non-recrystallized
approved in 2000. Last previous edition approved in 2021 as A1008/A1008M – 21.
grains.
DOI: 10.1520/A1008_A1008M-21A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.3.1 Discussion—Chemical composition shall be deter-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mined by the producer unless there is prior agreement between
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. producer and user, or seller and buyer.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1008/A1008M−21a
3.2.4 inclusion control, n—the process of reducing the 3.2.8 stabilization, n—addition of one or more nitride- or
volume fraction of inclusions or modifying the shape of carbide-forming elements, or both, such as titanium and
inclusions to improve formability, weldability, and machinab
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A1008/A1008M − 21 A1008/A1008M − 21a
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
Formability, Required Hardness, Solution Hardened, and
1
Bake Hardenable
This standard is issued under the fixed designation A1008/A1008M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers cold-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved
formability, required hardness, full hard, solution hardened, and bake hardenable steel sheet, in coils and cut lengths.
1.2 Cold rolled steel sheet is available in the designations as listed in 4.1.
1.3 This specification does not apply to steel strip as described in Specification A109/A109M.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A109/A109M Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
General Requirements for
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A1092 Specification for Steel Sheet, as Cold-Reduced, for Conversion to Annealed Cold-Rolled Steel Sheet, and Hot Dip
Metallic-Coated Steel Sheet
E18 Test Methods for Rockwell Hardness of Metallic Materials
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.19
on Steel Sheet and Strip.
Current edition approved May 1, 2021Nov. 1, 2021. Published June 2021November 2021. Originally approved in 2000. Last previous edition approved in 20202021 as
A1008/A1008M – 20.A1008/A1008M – 21. DOI: 10.1520/A1008_A1008M-21.10.1520/A1008_A1008M-21A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1008/A1008M − 21a
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
E646 Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials
3. Terminology
3.1 Definitions:
3.1.1 For definitions of other terms used in this specification, refer to Terminology A941.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aging, n—loss of ductility with an increase in hardness, yield strength, and tensile strength that occurs when steel that has
been slightly cold worked (such as by temper rolling) is stored for some time.
3.2.1.1 Discussion—
Aging increases the tendency of a steel to exhibit stretcher strains and fluting.
3.2.2 Bake Hardenable Steel (BHS), n—steel in which significant aging is realized when moderate heat treatment, such as that used
for paint baking, follows straining or cold working.
3.2.3 Full Hard Steel (FHS), n—steel that is cold reduced and exhibits a microstructure consisting of non-recrystallized grains.
3.2.3.1 Discussion—
Chemical composition shall be determined by the producer unless there is prior agreement between producer and user, or seller
and buyer.
3.2.4 inclusion control, n—the process of reducing the volume fraction of
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A1008/A1008M − 21a
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
Formability, Required Hardness, Solution Hardened, and
1
Bake Hardenable
This standard is issued under the fixed designation A1008/A1008M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.1 This specification covers cold-rolled, carbon, structural,
A568/A568M Specification for Steel, Sheet, Carbon,
high-strength low-alloy, high-strength low-alloy with im-
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
proved formability, required hardness, full hard, solution
Cold-Rolled, General Requirements for
hardened, and bake hardenable steel sheet, in coils and cut
A941 Terminology Relating to Steel, Stainless Steel, Related
lengths.
Alloys, and Ferroalloys
1.2 Cold rolled steel sheet is available in the designations as
A1092 Specification for Steel Sheet, as Cold-Reduced, for
listed in 4.1.
Conversion to Annealed Cold-Rolled Steel Sheet, and Hot
1.3 This specification does not apply to steel strip as Dip Metallic-Coated Steel Sheet
E18 Test Methods for Rockwell Hardness of Metallic Ma-
described in Specification A109/A109M.
terials
1.4 The values stated in either SI units or inch-pound units
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
are to be regarded separately as standard. The values stated in
E646 Test Method for Tensile Strain-Hardening Exponents
each system may not be exact equivalents; therefore, each
(n -Values) of Metallic Sheet Materials
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3. Terminology
with the standard.
3.1 Definitions:
1.5 This international standard was developed in accor-
3.1.1 For definitions of other terms used in this
dance with internationally recognized principles on standard-
specification, refer to Terminology A941.
ization established in the Decision on Principles for the
3.2 Definitions of Terms Specific to This Standard:
Development of International Standards, Guides and Recom-
3.2.1 aging, n—loss of ductility with an increase in
mendations issued by the World Trade Organization Technical
hardness, yield strength, and tensile strength that occurs when
Barriers to Trade (TBT) Committee.
steel that has been slightly cold worked (such as by temper
2. Referenced Documents rolling) is stored for some time.
2
3.2.1.1 Discussion—Aging increases the tendency of a steel
2.1 ASTM Standards:
to exhibit stretcher strains and fluting.
A109/A109M Specification for Steel, Strip, Carbon (0.25
Maximum Percent), Cold-Rolled
3.2.2 Bake Hardenable Steel (BHS), n—steel in which
significant aging is realized when moderate heat treatment,
such as that used for paint baking, follows straining or cold
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
working.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
3.2.3 Full Hard Steel (FHS), n—steel that is cold reduced
A01.19 on Steel Sheet and Strip.
Current edition approved Nov. 1, 2021. Published November 2021. Originally
and exhibits a microstructure consisting of non-recrystallized
approved in 2000. Last previous edition approved in 2021 as A1008/A1008M – 21.
grains.
DOI: 10.1520/A1008_A1008M-21A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.3.1 Discussion—Chemical composition shall be deter-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mined by the producer unless there is prior agreement between
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. producer and user, or seller and buyer.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1008/A1008M − 21a
3.2.4 inclusion control, n—the process of reducing the 3.2.8 stabilization, n—addition of one or more nitride- or
volume fraction of inclusions or modifying the shape of carbide-forming elements, or both, such as titanium and
inclusions to improve formability, weldability, and machinabil- columbium, to control the level of the interstitial elements of
ity. carbon and nitrogen in the steel.
3.2.4.1 Discussi
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.